painter



Davia prima all whom t may concernh -Beit known that Ij,Dav1D` E. PAYNTER, of the cityof Philadelphia and State of Pennsylvania, have Iinvented@` certain new `Improvenients in Machinery for Grinding Paint, Ink, and otherSimilar Substances; and Ido hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawing and" to the letters of reference marked thereon.` o o My invention relatestomillswith conical y grindingsurfaces i and consists in a new arrangement and` construction of the several parts `so that "the whole may be rendered "simple and portable, aswell as eflicient in its action..4 i o 3 h In order toenable others Skilled in the art to make andusemy` invention I will now proceedto describewits constri'iction and operation. Onreferencejto the drawing-Figure l is *a sideelevation showingthe exterior of my improved grinding mill." Fig.` 2 is a front view `of the same andgFig. 3 is a Vsectional view showing the manner of arranging the teeth on the grinding cone. o Y

h "The same `letters of `reference allude `to similar parts `throughout the several views. A is'thestationary cone barrel cast to and l supported by the standard` C, and having a i hopper B forreceiving the material to be D is the revolvingdouble cone one of the surfaces of which,`namely that which works i in the barrel Aisfarranged in the following .o manner-The small fend of this cone at s is turned perfectly smooth fitting the inside of the stationarybarrelg in the part t are `cut or otherwise cast afseries of deep'spiral Mgroovesforming `the teeth, which. terminate abruptly at the'small end s of the cone but toward the large endthey terminate in shal? `lowfgroovesas shown"y at J, the` latter are not cut quitel to the` end of the largestpart of the cone but `end a short `distance there U from, allowingjf'aksmall portion ofthe vsaid "large end tobeperfectlysmooth. It should 1 i be understood that fthe "sides of the toothed portion of the `doublecone D viewed "sec-` tionally) are "not perfectlystraight thepor-v` y tiont being slightly' sunk below theleyel of the `portions s and o. o i lnxthe interior or grinding surface of the "155 stationary barrel is.` cut a` series of longiv to effect.

Unire v 7 sfrarrs PATENT oFF-ica.

mmm-MILL.

` spfecin tiqa ef Letfrsratent No.` 12,107, dated April 1o, 1855.

tudinal grooves which are deeper at the small end of the saidbarrel than at the large end, and at the bottom edge of the hopper B which is nearest to the large end `of the cone barrel and where it meets the grinding surface of the latter is cut a series of deep notches which form what I denominate the skin teeth. The toothed portion o-f the revolving double cone D has its `largest diameter a short distance from the large end of the barrel from which point it begins again to recede, forming a smooth exterior or discharging cone terminating in a small hub which is pressed against by the point of the bolt F the latter screws into the yoke E which is secured to small lugs on the stationary barrel A, and underneath is fastened the spout G. The small hub at the termination of the exterior cone rests on a cross piece riveted or otherwise cast to the yoke E.

A scraper M is caused to bear against the exterior cone by means Vof the strip N which is a part o-f the scraper and acts as a spring. To the small end of the toothed portion of the double cone is cast the spindle J which passes through the stuffing box H at the small end of the stationary barrel, and is furnished at the end with a handled flywheel o'r other convenient drivingapparatus.

The machine being set in motion the substance to be ground is introduced into the hopper B whence it passes between the inside of the stationary barrel and the outside of the revolving toothed cone the deep teeth t on which tear and grind the material,

an operation which the skin, teeth at the bottom of the hopper assist considerably h The portion t of the toothed cone being sunkas above described below the level of the other portions a considerable quantity ofthe material to be groundis admitted into the space thus formed and is allowed tobe acted uponby the deep teeth preparatory to its being carried onward by .their spiral form toward the shallow grooves on o which further triturate and knead the substance and carry `it still farther onward to" the smoothportion of thelarge end of the cone from whence after becoming further levigated it is discharged onto the ex `terior cone and directed thence into the spout G by the scraper M. The stuffing box H effectually prevents any leakage taking placerat the small end of the` stationary barrel, While the screw F serves to regulate or set up the revolving cone When it becomes Worn or when it becomes necessary to render finer material to be ground.

5 It will be seen that by this machine the several processes of tearing, grinding, and levigating, are performed at one operation, which render it especially applicable to the regrinding of dried or refuse paint technically called skins, Which have heretofore been for the most part Wasted.

I am aware that mills with conical grinding surfaces are commonly used. .I am also aware that many of the features described above have been used in connection with other mills. I therefore do not Wish to claim such parts individually but What I desire to secure by Letters Patent 1s The arrangement and combination of the Whole of the parts contained in the foregoing specification, that is to say I claim the double cone D constructed as shown at s, 2f and o in combination with the barrel A substantially as described, for the purpose specified.

DAVID E. PAYNTER. Vitnesses:

JAMES P. EVANS, HENRY HowsoN. 

